Invasion: The Siege

Invasion: The Siege
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Authors	Andy Chen, Claude Martins
Port	Vanilla Doom
IWAD	Doom II
Year	1994
Link	Doomworld/idgames

This level occupies the map slot MAP01. For other maps which occupy this slot, see Category:MAP01.

This article about a map is a stub. Please help the Doom Wiki by adding to it.

Invasion: The Siege is a single-level PWAD for Doom II. It was designed by Andy Chen and Claude Martins in 1994, and is a spin-off from the Invasion series (Invasion... Level 1: Contamination and Invasion... Level 2: The Upper Decks).

Walkthrough

Map of Invasion: The Siege

Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.

Secrets

There are no official secrets on this map.

Bugs

Two pairs of mancubi (things 336 & 337, and things 338 & 339) are stuck in each other and thus unable to move. Therefore they cannot teleport in, and thus cannot be killed. They also block four barons of Hell (things 313, 314, 340, and 342) from reaching the teleporter, and thus they cannot be killed either. However, due to the monster spawner, 100% kills is still possible.

Speedrunning

As this level does not contain official secrets, the NM 100S category is redundant.

Current records

The records for the map at the Doom Speed Demo Archive are:

Run	Time	Player	Date	File	Notes
UV speed	0:03.83	Napsalm	2023-05-22	invsiegep383.zip	Cross-listed from Pacifist
NM speed	0:05.09	Revved	2018-05-12	invsiegen509.zip
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist	0:03.83	Napsalm	2023-05-22	invsiegep383.zip

The data was last verified in its entirety on May 27, 2023.

Deathmatch

Player spawns

This level contains five spawn points:

1. facing east. (thing 10)
2. facing east. (thing 145)
3. facing east. (thing 199)
4. facing east. (thing 201)
5. facing east. (thing 203)

Statistics

Map data

Things	457
Vertices	1069*
Linedefs	1105
Sidedefs	1644
Sectors	176

* The vertex count without the effect of node building is 896.

Things

This level contains the following numbers of things per skill level:

Single-player
Monsters	1-2	3	4-5
Heavy weapon dude	6	4	6
Imp	3
Revenant	13
Cacodemon	5
Pain elemental	9
Hell knight	1
Baron of Hell	6
Arachnotron	7
Mancubus	15
Spiderdemon	2
Cyberdemon	1
Romero's head	1
Monster spawner	1
Spawn spot	14
Weapons	1-2	3	4-5
Chainsaw	1
Shotgun	4
Super shotgun	3
Chaingun	5
Rocket launcher	3
Plasma gun	1
Ammunition	1-2	3	4-5
Box of bullets	21
Box of shotgun shells	17
Box of rockets	38
Energy cell pack	8
Health & Armor	1-2	3	4-5
Medikit	8
Armor	2
Megaarmor	1
Items	1-2	3	4-5
Supercharge	1
Megasphere	1
Backpack	2
Berserk	4	3	4
Invulnerability	1
Partial invisibility	1
Miscellaneous	1-2	3	4-5
Exploding barrel	60
Teleport landing	26

Multiplayer
Monsters	1-2	3	4-5
Heavy weapon dude	14	7	14
Imp	7
Revenant	18
Cacodemon	5
Pain elemental	12
Hell knight	3
Baron of Hell	6
Arachnotron	16
Mancubus	22
Spiderdemon	2
Cyberdemon	3
Romero's head	1
Monster spawner	1
Spawn spot	14
Weapons	1-2	3	4-5
Chainsaw	3
Shotgun	4
Super shotgun	3
Chaingun	5
Rocket launcher	3
Plasma gun	1
Ammunition	1-2	3	4-5
Box of bullets	40
Box of shotgun shells	34
Box of rockets	44
Energy cell pack	12
Health & Armor	1-2	3	4-5
Medikit	12
Armor	5
Megaarmor	4
Items	1-2	3	4-5
Supercharge	4
Megasphere	3
Backpack	4
Berserk	4	3	4
Invulnerability	1
Partial invisibility	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Deathmatch start	5
Exploding barrel	60
Teleport landing	26

External links

• Invasion: The Siege at Doomworld/idgames
• Invasion: The Siege at the Doom Speed Demo Archive
• Review (2/5) at Doom Underground